Method of making a dental crown for a dental preparation by mean

Details Method of making a dental crown for a dental preparation by mean Method of making a dental crown for a dental preparation by mean

1988-10-05

1990-07-03

Hall, Carl E.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

409 80, 433223, B23P 1300

Patent

active

049379283

ABSTRACT:
A method of making a dental crown for a dental preparation by means of a CAD-CAM system. In the method, first a model of the dental preparation is made from a refractory material under the control of the CAD-CAM system. Subsequently, at least one layer of a material suitable for dental crowns is applied to the model. The layer is sintered during or after its application, and is then ground under the control of the CAD-CAM system until a predetermined shape is obtained. Finally the refractory material is removed.

REFERENCES:
patent: 3502466 (1970-03-01), Vickery
patent: 3861044 (1975-01-01), Swinson
patent: 4324546 (1982-04-01), Heitlinger et al.
patent: 4411626 (1983-10-01), Becker et al.
patent: 4556389 (1985-12-01), Ueno et al.
patent: 4558977 (1985-12-01), Inoue et al.
patent: 4575805 (1986-03-01), Moermann et al.

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